A longer uninterrupted block
Ninety minutes.
A substantial countdown for work that needs time to develop before the next break.
Timer controls
Time remaining
Ready
- Sound
- Repeat timer
- Keep screen awake
A long session with one visible boundary.
- Ninety minutes can hold a deep-work cycle, a practice exam, a class, a rehearsal or a creative session without repeated clock checking.
Use wake lock when supported, keep sound optional, and enter fullscreen when the finish needs to remain visible across a room.